package org.csmzxy.class2333;

public class Example03 {

    public static void main (String[]args){
        int  i=20;
        long l=i;
        float f=l;
        double d=f;
        System.out.println("long类型l："+l);
        System.out.println("float类型变量f:"+f);
        System.out.println("double类型变量d"+d);

    }

}
